y2188
Known Member
to make it even more confusing, my NGK plugs (stock ori) is LZKAR6AP-11 plugs which doesn't exist on your cross reference link. It's actually similar (but not the same) as DENSO FXE20HR11 which is supposedly the same heat range but different gapping.
How laaa![]()
And the supposed correct one is FXE20HR11 which is impossible to find in KL and expensive as hell in SGP
Re-gap yourself lol
However the HKS Iridium on my Mark X is already about 80k km now and still going fine so far.

